Someone is allergic to the sun?

Yes, some people are allergic to the sun. This condition is called solar urticaria, and it is a type of skin reaction that is triggered by exposure to ultraviolet (UV) light from the sun. Symptoms of solar urticaria can include hives, itching, redness, and swelling of the skin. In severe cases, solar urticaria can also cause anaphylaxis, which is a life-threatening allergic reaction.

There is no cure for solar urticaria, but there are treatments that can help to manage the symptoms. These treatments include avoiding sun exposure, using sunscreen, and taking antihistamines. In some cases, phototherapy (light therapy) may also be helpful.